httpx | purpose HTTP toolkit that allows running multiple probes | Security Testing library
kandi X-RAY | httpx Summary
kandi X-RAY | httpx Summary
Features • Installation • Usage • Running httpx • Notes • Join Discord. httpx is a fast and multi-purpose HTTP toolkit allow to run multiple probers using retryablehttp library, it is designed to maintain the result reliability with increased threads.
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QUESTION
I am using Airflow 2.0 and have installed the slack module through requirements.txt in MWAA. I have installed all the below packages, but still, it says package not found
...ANSWER
Answered 2022-Apr-10 at 04:33By default, MWAA is constrained to using version 3.0.0
for the package apache-airflow-providers-slack
. If you specify version 4.2.3
in requirements.txt
, it will not be installed (error logs should be available in CloudWatch). You'll have to downgrade to version 3.0.0
.
apache-airflow-providers-slack
(constraints.txt)
OR
Add constraints file to the top of requirements.txt
to use version 4.2.3
of apache-airflow-providers-slack
.
Add the constraints file for your Apache Airflow v2 environment to the top of your requirements.txt file.
QUESTION
We can easily create a persistent session using:
...ANSWER
Answered 2022-Apr-09 at 06:45Something like this
QUESTION
I have the below code that fetches data from Coinmarketcap api and sends me a telegram message when parameters are met. When I fetch 100 coins then the code works fine. But when I fetch 5000 coins the code is very slow. The schedule time with refresh api is not the time that I have code.
Can someone see why the code is slow with fetching data from the api with 5000 coins?
A good answer is insert httpx / asyncio in the code. (answer Pawel Rubin (thanks). Does someone know how i can insert asyncio into the code?
...ANSWER
Answered 2022-Apr-01 at 13:50The code is making requests sequentially for every element in parsed['data']
.
Consider running your code asynchronously with some HTTP client that supports asyncio
, for example httpx, and use asyncio.gather
to run your requests concurrently.
Consider the following example which makes 50 GET requests to google.com
using requests and using httpx. Note that the async solution is significantly faster.
QUESTION
I have the following code:
...ANSWER
Answered 2022-Mar-30 at 21:36Q :
" ... What's the problem? "
A :
The FastAPI documentation is explicit to say the framework uses in-process tasks ( as inherited from Starlette ).
That, by itself, means, that all such task compete to receive ( from time to time ) the Python Interpreter GIL-lock - being efficiently a MUTEX-terrorising Global Interpreter Lock, which in effect re-[SERIAL]
-ises any and all amounts of Python Interpreter in-process threads
to work as one-and-only-one-WORKS-while-all-others-stay-waiting...
On fine-grain scale, you see the result -- if spawning another handler for the second ( manually initiated from a second FireFox-tab ) arriving http-request actually takes longer than a sleep has taken, the result of GIL-lock interleaved ~ 100 [ms]
time-quanta round-robin ( all-wait-one-can-work ~ 100 [ms]
before each next round of GIL-lock release-acquire-roulette takes place ) Python Interpreter internal work does not show more details, you may use more details ( depending on O/S type or version ) from here to see more in-thread LoD, like this inside the async-decorated code being performed :
QUESTION
I'm trying to send a request to an api using pytest through httpx.AsynClient
...ANSWER
Answered 2022-Mar-16 at 14:10You're double encoding your content as JSON - you're both asking for it to be returned as a JSON string, and then telling your request method to encode it as JSON a second time. json=
as an argument to the method on the client converts the given data to JSON - it does not expect already serialized JSON.
You can see this in your request string because it starts with "
and not with {
as you'd expect:
QUESTION
I need to be able to keep adding coroutines to the asyncio loop at runtime. I tried using create_task()
thinking that this would do what I want, but it still needs to be awaited.
This is the code I had, not sure if there is a simple edit to make it work?
...ANSWER
Answered 2021-Dec-19 at 13:43I once created similar pattern when I was mixing trio
and kivy
, which was demonstration of running multiple coroutines asynchronously.
It use a trio.MemoryChannel
which is roughly equivalent to asyncio.Queue
, I'll just refer it as queue
here.
Main idea is:
- Wrap each task with class, which has run function.
- Make class object's own async method to put object itself into
queue
when execution is done. - Create a global task-spawning loop to wait for the object in
queue
and schedule execution/create task for the object.
QUESTION
i work on reverse proxy based on fastapi. I want transparenty send data requested by AsyncClient. I have problem with gziped pages. Please can you help me, how to prevent default ungzipping of resp.content on this example?
...ANSWER
Answered 2022-Feb-21 at 15:58It is possible to extract undecoded data from httpx
response only in case of streaming mode stream=True
or httpx.stream
. In the example below, I collect the entire response using aiter_raw
and return it from the path operation. Keep in mind that the entire response is loaded into memory, if you want to avoid this use fastapi StreamingResponse
QUESTION
I am running into an error when trying to run my container where it is saying it can't find a module while trying to import. Specifically:
ModuleNotFoundError: No module named 'sentry_sdk'
The following is my DockerFile which is a multistage build, it seems to install all the packages according to the console output.
...ANSWER
Answered 2022-Feb-18 at 17:05OK I figured it out and now I feel dumb.
The issue was indeed related to the venv, basically, uvicorn is installed on the base image but not in my pyproject.toml. So poetry didn't install it in the venv. When I started the app in the Dockerfile using CMD it couldn't find uvicorn in the venv so went to the base install and ran from there. When I added uvicorn to the venv it all worked fine.
QUESTION
Consider this function that makes a simple GET request to an API endpoint:
...ANSWER
Answered 2022-Feb-08 at 16:27Is there any advantage in doing it like this or is there a better way?
No, there is no advantage using httpx.Client
in the way you've shown. In fact the httpx.
API, e.g. httpx.get
, does exactly the same thing!
The "pool" is a feature of the transport manager held by Client
, which is HTTPTransport
by default. The transport is created at Client
initialisation time and stored as the instance property self._transport
.
Creating a new Client
instance means a new HTTPTransport
instance, and transport instances have their own TCP connection pool. By creating a new Client
instance each time and using it only once, you get no benefit over using e.g. httpx.get
directly.
And that might be OK! Connection pooling is an optimisation over creating a new TCP connection for each request. Your application may not need that optimisation, it may be performant enough already for your needs.
If you are making many requests to the same endpoint in a tight loop, iterating within the context of the loop may net you some throughput gains, e.g.
QUESTION
I am trying to use this google translate python library googletrans 3.0.0
, which I installed from pypi.
I used this code to start with:
...ANSWER
Answered 2022-Feb-08 at 11:40This seems to be very confusing according to the official docs, but this github issue has a solution.
For some reason the docs specify both strings and HTTPTransports but this has been clarified in the issue above.
Basically:
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